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Please use this identifier to cite or link to this item: http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/3244
Title: Controlling the aspect ratio and electrocatalytic properties of nickel cobaltite nanorods
Authors: Basu, Mrinmoyee
Keywords: Chemistry
Electrocatalytic
Nickel cobaltite
Issue Date: 2013
Publisher: RSC
Abstract: NiCo2O4 nanorods (assembled with small nanoparticles) with different aspect ratios were synthesized through a surfactant mediated reverse micellar route. Anisotropy of the nickel cobaltite nanorods was retained after calcination of nickel cobalt oxalate precursors. A high aspect ratio (∼12) of the NiCo2O4 nanorods was obtained by using a cationic surfactant (CTAB) while a non-ionic surfactant (Tergitol) led to the formation of a much lower aspect ratio (∼5) of the nanorods. These nanorods could potentially be used as anodic electrocatalysts for the oxygen evolution reaction. Due to having a high surface roughness, nanorods assembled with the smallest particles, ∼5–10 nm in diameter (surface area ∼158 m2 g−1), show a high current density of ∼140 mA cm−2 with a low onset potential of ∼0.31 V (at 0.9 V) towards the oxygen evolution reaction and the values of current density is significantly higher than earlier reports.
URI: 10.1039/c3ra44156c
http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/3244
Appears in Collections:Department of Chemistry

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